package com.example.rjwmproject.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.rjwmproject.common.R;
import com.example.rjwmproject.entity.Employee;
import com.example.rjwmproject.service.EmployeeService;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
//@ResponseBody
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

//    员工登录
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

//        1.将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password= DigestUtils.md5DigestAsHex(password.getBytes());

//        2.根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp=employeeService.getOne(queryWrapper);

//        3.如果没有查询到则返回登录失败结果
        if(emp==null){
            return R.error("登陆失败");
        }

//        4.密码比对，不一致则返回登陆失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登陆失败");
        }

//        5.查看员工状态如果为禁用则返回员工已禁用结果
        if(emp.getStatus()==0){
            return R.error("账号已禁用");
        }

//        6.登陆成功，将员工id存入Session并返回登陆成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);

    }

//    员工页面退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
//        清理Session中保存的当前登陆员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

//    新增员工
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工，员工信息：{}",employee.toString());

        //设置初始密码123456,使用md5的加密处理,设置其他null的项
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//        Long empId=(Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);
        employeeService.save(employee);
        return R.success("新增人员成功");
    }

//    员工信息分页查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page={},pageSize={},name={}",page,pageSize,name);

//        构造分页构造器
        Page pageInfo=new Page(page,pageSize);

//        构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper();
//        添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
//        添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
//        执行查询
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

//    根据id修改员工信息
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());

        long id = Thread.currentThread().getId();
        log.info("线程id为:{}",id);

//        Long empId=(Long)request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }

//    根据id查询员工信息
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息..");
        Employee employee=employeeService.getById(id);
        if(employee!=null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }


}
